275278020 has 24 divisors (see below), whose sum is σ = 770778624. Its totient is φ = 73407456.

The previous prime is 275278019. The next prime is 275278021. The reversal of 275278020 is 20872572.

275278020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (275278019) and next prime (275278021).

It is not an unprimeable number, because it can be changed into a prime (275278021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2293924 + ... + 2294043.

It is an arithmetic number, because the mean of its divisors is an integer number (32115776).

Almost surely, 2^275278020 is an apocalyptic number.

275278020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275278020 is an abundant number, since it is smaller than the sum of its proper divisors (495500604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

275278020 is a wasteful number, since it uses less digits than its factorization.

275278020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4587979 (or 4587977 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 275278020 is about 16591.5044525805. The cubic root of 275278020 is about 650.5147953340.

The spelling of 275278020 in words is "two hundred seventy-five million, two hundred seventy-eight thousand, twenty".